Slow light on Gbit/s differential-phase-shift-keying signals
- 19 February 2007
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 15 (4) , 1878-1883
- https://doi.org/10.1364/oe.15.001878
Abstract
We demonstrate, via simulation and experiment, slowing down of a phase-modulated optical signal. A 10.7-Gb/s NRZ-DPSK signal can be delayed by as much as 42 ps while still achieving error free via broadband SBS-based slow light. We further analyze the impact of slow-light-induced data-pattern dependence on both constructive and destructive demodulated ports. By detuning the SBS gain profile, we achieve 3-dB Q-factor improvement by the reduction of pattern dependence. Performance comparison between NRZ-DPSK and RZ-DPSK shows that robustness to slow-light-induced pattern dependence is modulation format dependent.Keywords
This publication has 4 references indexed in Scilit:
- All-optical slow-light on a photonic chipOptics Express, 2006
- On the balance between delay, bandwidth and signal distortion in slow light systems based on stimulated Brillouin scattering in optical fibersOptics Express, 2006
- Large tunable delay with low distortion of 10 Gbit/s data in a slow light system based on narrow band fiber parametric amplificationOptics Express, 2006
- Optical phase-shift-keyed transmissionJournal of Lightwave Technology, 2005